1188272 has 20 divisors (see below), whose sum is σ = 2403120. Its totient is φ = 568128.

The previous prime is 1188269. The next prime is 1188277. The reversal of 1188272 is 2728811.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1188277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247 + ... + 1982.

It is an arithmetic number, because the mean of its divisors is an integer number (120156).

2^1188272 is an apocalyptic number.

It is an amenable number.

1188272 is an abundant number, since it is smaller than the sum of its proper divisors (1214848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1188272 is a wasteful number, since it uses less digits than its factorization.

1188272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3254 counting only the distinct ones).

The product of its digits is 1792, while the sum is 29.

The square root of 1188272 is about 1090.0788962272. The cubic root of 1188272 is about 105.9185323954.

The spelling of 1188272 in words is "one million, one hundred eighty-eight thousand, two hundred seventy-two".